Detachable connector



E. SCHWARTZ.

DETACHABLE CONNECTOR.

APPLICATION FILED OCT. I0, I'9I8. 1,359,280.

Patented Nov. 16, 1920.

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@num/vio@ EDN/ 7170 SCHH/@H72 MMM EDWARD SCHWARTZ, OF NEW YORK, N. Y.

SUPPLY COMPANY INC., OF JERSEY CITY, NEW

MASSACHUSETTS.

DETACHABLE T o all whom t may concern Beit known that I, EDWARD SCHWARTZ, a citizen of the United States of America, residing in the city, county, and State of New York, have invented certain new and useful Improvements in Detachable Connectors, of which the following is a specification.

My invention relates to detachable connectors and particularly to a device for es tablishing electrical connection between the conductors of adjacent'cable ends, the object of my invention being to provideian efficient device of economical construction having certain features of improvement hereinafter described or shown in the accompanying drawing, in which- Figure 1 is a side elevation of a connector in which my invention is illustratively embodied;

Fig. 2 is an end elevation thereof;

Fig. 3 is a longitudinal section through the detached parts of the connector Figs. 4 Yand 5 are cross sections on the lines 4 4 and 5 5, Fig. 3, respectively;

Fig. 6`is a perspective of one of the plug terminals and Fig.w 7 is a similar view, partly in section, of one of the receptacle terminals.

While certain features of the present invention are applicable to other forms of connectors. I have here shown my invention embodied in a device of the type designed to afford a detachable connection between the separable ends 10 and v11 of a cable, each comprising conductor wires 12 and 13. While the parts are reversible in position, the cable end 10 is here shown secured to the receptacle element A of the connector and the cable end 11 attached tothe plug element B of the connector.

The receptacle element A comprises a button 14 of insulating material. centrally pierced at 15 by a rectangular hole to receive the jacks of the plug element hereinafter described. The opposite ends of the rectangular passage so formed are rabbeted to the shoulders 16 to accommodate the receptacle terminals, one of which is shown on an enlarged scale in Fig. 7. These terminals are identical. in construction and each comprises a strap of sheet metal 17, the side margins of which are anged'at 18 to im part a channel section to the inner end of PATENT OFFICE.

, ASSIGNOR T0 MANHATTAN ELECTRICAL JERSEY, A CORPORATION OF CONNECTOR.

Specification of Letters Patent. Patented NOV- 16, 1920. ppn'tion filed october 1o,

1918. Serial No. 257,545.

the strap.` The opposite end projects beyond the end of the button and is also provided With marginal flanges 19 extending in opposite direction from the flanges 18 and affording a channel section oppositely faced and tapped Yat 20 to receive the binding screw 21. The intermediate portion ofthe strap is shouldered at 22 to afford an offset, which is engaged by the incurved end 23 of the arm 24 of a spring loop which embraces the inner end of the terminal strap and presents its other arm 25 to the passage 15 as a spring brush contact. Offset from the outer end of one of the flanges 18 is a lug 26- tapped at27 to receive a securing screw 28,

by which the terminal is secured in position on the button 14. The button is shouldered at 29, and the nose so formedfthreaded at 30 to receive the screw cap 31,' within the chamber 32 of which are confined the bared wire ends and 'taping of the cable 10.

The plug member of the connector coinv prises an insulating button 33, centrally pierced by a.rectangular aperture substantially corresponding in diameter to the area and shape of the aperture 15 of the receptacle 14. At the opposite sides of this aperture are located terminal straps 34, each identicalin construction and one of which is shown on a la-r er scale in Fig. 6. These straps are of sulcient length to project beyondopposite ends of thel plug and have marginal flanlges 35 imparting a channel section thereto. n mounted position on the plug the channels thus formed face each other and form the jacks of the plug. At the opposite end of the button, each strap has offset flanges 36 faced in the opposite direc.

tion from the flanges 35 and forming a channel section tapped at 37 to receive the binding screw 38. A lug 39, offset from the end of one of the flanges 35, is tapped at 40 to receive the holding screw 41, by which the strap is secured upon the button 33. In order to hold the straps 34 rigidly in position and to prevent their deformation, I interposev between the same a block of insulation 42 Ywhich is forced intocposition between the channels 35 with sufficient frictional engagement to maintain it in position without other securing means. The button 33 is shouldered at 43 and its nose tapped at 44 to receive the cap 45, which screws thereon and houses, in like manner as the cap 31, the connections between the wires v12 and 13 of the cable end 11'and the respective binding screws 38.

The operation of the device is obvious. Having wired the two members ofthe connector, it is merely necessary to insert the plug 13 into the receptacle A. The size of the channels 84 is such that they sleeve into the channels 18 with approximate exactness, and the frictional engagement thus established is reinforced-by the `pressure of the brushes 25 carried by the receptacle terminals. To open the circuit, it is only neces# sary to withdraw the plug.

The construction shown is onefof great economy, since the insulation parts are readily molded from insulating composition, and the metal parts are readily struck from sheet metal and formed "to shape in' dies'. The assembly of the metal parts on their respective buttons is an extremely simple operation, while the completed device affords a very eliicient, rugged connector, not likely to be injured by careless handling.

Various modifications in detail of construction will readily occur to those skilled in the art without departing from what I claim as my invention.

I claim: A

1. In a detachable connector, a plug member comprising a centrally pierced insulating button, a pair yof spaced conducting straps passing through said piercing and projecting from the 'opposite ends of said button, binding screws tapped into said straps beyond one end of said button, and an independent spacing block of insulation frictionally engaged between the endsof .said straps projecting beyond the opposite end of said button.

2. The combination with a construction such as that recited in'cla-im 1, of means for holding said straps securely en said button.

3. In a construction such as specilied in claim 1, straps of channel section faced to- Ward each other to receive and confine said spacing block.

4. In a construction such as specified in claim l, straps of opposite channel section at their opposite ends projecting beyond the insulating' button.

5. In a construction such as speciiied in ward each other at one end andconfuiing thrust of `the ber.

the spacing block therebetween and of opposite channel section at the opposite end of the plug, together with binding screws tapped into said straps at the latter end thereof.

6. In a detachable connector, a socket member comprising an insulating button centrally pierced by a shouldered passage rabbeted at opposite sides thereof, a pair l of spaced conducting straps engaged in said rabbet and projecting beyond one end of th\e button, binding screws tapped into said projecting ends of the straps, and spring `brush contacts embracing said straps and projecting into the receptacle passage.

In a construction such as specified in claim 6, a ylug on each strap and means piercing the button and engaging said lug to hold the strap in position.

, 8. In a detachable connector, an. insulating button and a terminal strap carried thereby, an offset shoulder on said strap and a spring contact brush loop embracing.

direction of their length, and a coperat-` ing jack having substantially parallel channel terminals embraced within the terminals of the receptacle on the straight inward jack into the receptacle cham- 10. In yaidetachable connector, an insulating button recessed to afford a receptacle chamber, channel terminals faced toward each other in said chamber, and spring brush contacts overlying` the opposed faces of said terminals, in combination with a cooperating jack having substantially parallel channel terminals engaging said brush contacts and embraced within the channel terminals of the receptacle on'the straight inward thrust of the jack into the receptacle chamber. v

`In testimony whereof I have signed my name to this specification.

EDW. SCHWARTZ. 

